chore: Update and unify dependabot.yml

[gkarat]

No jira.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.35%. Comparing base (5cc53e7) to head (8669047).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #492   +/-   ##
=======================================
  Coverage   88.35%   88.35%           
=======================================
  Files         115      115           
  Lines        2491     2491           
  Branches      491      491           
=======================================
  Hits         2201     2201           
  Misses        275      275           
  Partials       15       15           

[leSamo]

Thank you, I added corresponding major/minor/patch labels to this repo, so dependabot applies them automatically to the created PRs.

I double-checked and the config seems to be correct even for yarn.